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Finding the Fourth Proportional to 5,764,493.86, 7,955,170.70 and 3,151,142.36

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Solution

The fourth proportional to 5,764,493.86, 7,955,170.70 and 3,151,142.36 is: 4,348,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,764,493.86 : 7,955,170.70 = 3,151,142.36 : x
  2. Step 2: Convert to fraction form
    5,764,493.86/7,955,170.70 = 3,151,142.36/x
  3. Step 3: Cross multiply
    5,764,493.86x = 7,955,170.70 × 3,151,142.36
  4. Step 4: Simplify right side
    5,764,493.86x = 25,067,875,373,800.85
  5. Step 5: Solve for x
    x = 25,067,875,373,800.85/5,764,493.86
  6. Step 6: Final answer
    x = 4,348,668.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.